Ok...removed the stock radio. Ihave a jvc head unit I want to install without purchasing the wiring harness adapter kit! Cheap i know but its my woods truck! Help please.....

 

By the way its a 02 sanoma

 

honestly I would just say spend the 15 bucks and get the harness... but if you really dont want to...

Switched 12V+ Yellow
Ground Black
Illumination Gray
Dimmer Brown
Antenna Trigger Pink
Antenna Right Front
Front Speakers 4" x 6" Dash
Left Front (+) Tan
Left Front (-) Gray
Right Front (+) Light Green
Right Front (-) Dark Green
Rear Speakers 6" x 9" Side Panels
Left Rear (+) Brown
Left Rear (-) Yellow
Right Rear (+) Dark Blue
Right Rear (-) Light Blue

For 2002 up blazers the wiring is as follows:
Radio 12v orange+radio harness
Radio Ground black-radio harness
Radio Ignition dk. green+radio harness
Radio Illumination gray (dimmer)+radio harness
Factory Amp Turn-on N/A
Power Antenna N/A
LF Speaker +/- tan - gray+,- radio harness
RF Speaker +/- lt. green - dk. green+,- radio harness
LR Speaker +/- brown - yellow+,- radio harness
RR Speaker +/- dk. blue - lt. blue+,- radio harness

 

The adapter is worth it in my opinion.

 

The adapter makes it so much faster to install. I did mine without one and it took an hour or so.